Bending-rolls for angle-bars or the like.



N0. ,684,|34. Patented Oct. 8, 1901.

a. THOMPSON SENDING BULLS FOR ANGLE BARS OR THE LIKE.

(Application filed June 12, 1901.)

(No Model.) 3 Sheets-Sheet I.

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G. THOMPSON.

BENDING ROLLS FDR ANGLE BARS OR THE LIKE.

l (Application filed June 12, 1901.: (No Model.) 3 Sheets-Sheet 2.

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Patented Oct, 8, I90l.

3 Sheets-Sheet 3.

a. THOMPSON. SENDING BULLS FOB ANGLE BARS DB THE LIKE. (Application fllad. June 12, 1901.)

(No Model.)

shaped by means of a set of rolls comprising UNITED STATES PATENT OFFICE.

GEORGE THOMPSON, OF MILWAUKEE, WISCONSIN.

BENDlNG-ROLLS FOR ANGLE-BARS OR THE LIKE.

SPECIFICATION forming part of Letters Patent NO. 684,134, dated O tober 8, 1901.

Application filed June 12, 1901.

To all whom, it nuw cone-arm:

Be it known that I, GEORGE THOMPSON, a citizen of the United States, and a resident of Milwaukee, county of Milwaukee, Wisconsin, have invented certain new and useful Improvements in Bending-Rolls for Angle- Bars or the Like, of which the following is declared to be a full, clear, and exact description.

The invention relates to rolls for bending and shaping angle-bars, T-bars, Z-bars, and other structural shapes and seeks to provide a simple and effective construction by which such bars and shapes may be accurately bent without lateral distortion.

The features of the invention are set forth in the following description, illustrated in the accompanying drawings, and most specifically pointed out in the appended claims.

Figure l is a view in elevation of my improved bending-rolls. Fig. 2 is a View in horizontal section, taken on the line 2 2 of Fig. 1. Fig. 3 is a plan view. Fig. 4. is a view in vertical section, taken on the line 4 L of Fig. 3. Fig. 5 is a detail viewin elevation with one set of rolls interchanged.

Metal bars and plates are usually bent and a pair of rolls for engaging one side of the material and a third intermediate roll for engaging the other side thereof; but when such a set of rolls is used for bending angle or T bars or other bars of irregular shape or crosssection the bar will not only be bent in the plane in which the rolls revolve, but will also be distorted laterally. To prevent such lateral distortion, I provide a second similar set of three rolls, which are mounted to revolve in a'plane at right angles to the set of main bending-rolls. I also provide means for adjus'ting the intermediate roll of each set, whereby the degree of curvature effected may be varied. By this means an angle-bar may be accurately bent with one of its flanges extending either inwardly or outwardly in the plane of its curvature, or both sets of rolls may be adjusted to bend the angle-bar so that both of its flanges will extend either inwardlyor outwardly atan angle to the plane of its curvature. Similar results may be obtained with T-bars, Z-bars, and other irregular shapes.

Serial No. 64,213. (No model.)

ism are mounted, are of irregular outline, as

clearlyindicated in Figs. 2 and 3, and the up-- per end '12 is preferably removably secured in position by the bolts 13, so that the parts may be easily assembled. The under face of the end 12 is also provided with the projecting ribs 14, which serve to engage the upper edge of the frame 10, as shown in Fig. at.

The main set of bending-rolls comprises the pair of rolls 15 and 16 and the oppositelydisposed intermediate roll 17. The pair of rolls 15 and 16 are fixed upon the supportingshafts 18 and 19, which are provided with shouldered ends, by which they are suitably jonrnaled within the ends of the frame. The lower ends of these shafts are provided with the driving-gears 20 and 21, both of which intermesh with the pinion 22. The pinion 22 is driven by the train of gears 23, 24, and 25. Pinion 22 and gear 23 are mounted to revolve together upon a stud-shaft 26, secured to the end 11 of the frame, and pinion 24. and gear 25 are mounted to revolve together upon a shaft 27, mounted in suitable bearings. The gear 25 is driven from any suitable mechanism by which the rolls may be thrown into and out of operation.

The supplemental set of bending-rolls are arranged to revolve in a plane at right angles to that of the main set of rolls and comprises the pair of rolls 28 and 29 for engaging one side of the material and the oppositely-dis posed intermediate roll 30 for engaging the opposite side of the material. The pair of rolls 28 and 29, as shown, are arranged'adjacent the pair of rolls 15 and 16 and are revolubly mounted in the U-shaped frames 31 by means of the headed bolts or shafts 32, removably held within the U-shaped frames by means of the set-screws 33. The U-shaped frames are, as shown,b 0lted in position upon the inner face of the lower end 11.

The intermediate 'rolls .of each set are mounted upon a common adjustable support constructed as follows: Rectangular openings 34 are provided, asshown, in the outer ends of the upper and lower parts of the frame,

within which are movably mounted boxes 35 and 36, which are held in place therein by plates 37, bolted thereto, which'plates overlap the edges of the openings 34. A longitudinal shaft or support 38 is carried by the boxes 35 and 36 and is keyed therein to be held against revolution, but so as to be longitudinally adjustable. A U-shaped frame or support 39 is formed in piece with or is keyed to the shaft 38 and projects at right angles to one side thereof. The intermediate roll 30 of the supplemental set of rolls is revolubly mounted within the 'U-shaped support 39 by means of a headed bolt or stud-axle 40, which is removably held in place in the frame by means of a set-screw 41. The intermediate roll 17 of the main set of rolls is revolubly mounted upon the support 38, adjacent the roll 30, and is held in place by means of a collar 42, having a set-screw 43. The lower end 44 of the shaft or support 3 is threaded and is engaged by a shouldered adjustable nut 45, revolubly mounted within a flanged opening in the lower end of the box A nut 45 is held against longitudinal movement by means of a collar or washer 46, fixed to the inner end thereof, and which engages the inner face of the lower side of the box, as clearly shown in Fig. 4. Adjustingscrews 47 extend through openings 48 in the outer ends of the upper and lower parts of the frame into the rectangular openings 34 and through openings in the sides of the boxes 35 and 36. Collars 49, located within slots 50 in boxes 35 and 36, are fixed to the inner ends of the screws 47, by which the screws are swiveled to the boxes. Flanged nuts. 51,

through which the screws 47 are threaded, are

heldinplace in the outer ends of the upper andlower parts of the frame, as clearly indicatedin 4. The outer ends of the screws 47are'provided with square portions 52, by

. which :they may be turned to adjust the slid-.

ing boxes 35 and 36. By the adjustingrscrews 4T'and the'adjusting-nut 45'the. supportzfor the intermediate rolls. 1? and 30 may be ad-' justed in different directions at right angles to each other to bring the separate intermediate rolls nearer to or farther away from the pair of rolls cooperating with each, so that the degree of bending effected by the main and supplemental setsof rolls may be adjusted as desired-that is to say, the main set of rolls may be adjusted to bend the angle-bar to the desired curve and the supplementalset adjusted to exactly counteract the lateral distortion, so that the angle-bar will be bent with one of its flanges in the plane of curvature, or both sets of rolls may be adjusted to bend the bar, so that both of its flanges will be at an angle to the plane of curvature.

As shown in the drawings, the rolls in each set are arranged adjacent the corresponding roll in the other set, and in order that the adjacent rolls shall have a proper bearing upon the angle-bar and still not interfere or rub against one another it is necessary that the periphery of the rolls bearing 011 the edges of the flanges should extend past the face of.

terfering with the rolls l5 and 16, as w When, however, 11116.3,ng1e;

in Figs. 1 and 2. bar is to be bent with its flange extending outwardly, the supplemental set will consist of the small intermediate roll 30 and a pair 1 of largerolls cooperating therewith and Q shouldered at their inner end, one of'which,

29 is shown in Fig. 5, so that the roll 30 the adjacent rolls which bear upon the sides 1 may bear upon the edge of flange b and the 7'1 rolls 29 may bear upon the edge of flange a, 7 1} As already stated, the bolts or shafts 32 and 40, carrying the set of supplemental rolls, are

removably held in place, so that this change may be readily eifected.

Although primarily designed for bending H H x angle-bars, the supplemental set of rolls may be adapted for bending T-bars, Z-bars, and V other shapes.

It is obvious that the details of construction may be varied by the skill of the me Q chanic without departure from the details of r the invention.

Having described my invention, what I 7 its}; 7 -1 claim as new, and desire to secure by Letters Patent, is

1. In bending-rolls for angle-bars or the like, the combination with a main set of bend- I ing-rolls, of asupplemental set of rolls mount- I ed to revolve in a plane at an angle to the plane of said main rolls, each set comprising a pair of rolls for engaging one side of the material '1 v and an intermediate third roll for engaging the opposite side thereof, each roll in one set being arranged adjacent the corresponding roll in the other set, and means for adjusting both of said adjacent intermediate rolls to" and from each pair of rolls.

2. In bending-rolls for angle-bars or the like, the combination with a main set of bendingrolls, of a supplemental set of rolls mounted to revolve in a plane at an angle to the plane of said main rolls, each set com-1."

prising a pair of rolls for engaging one side i of the material and an intermediate third roll for engaging the opposite side thereof,

each roll in one set being arranged adjacent the corresponding roll in the other set, a common support for said adjacent intermediate rolls, and meansfor adjusting said support in different directions to and from each pair of rolls.

3. In bending-rolls for angle-bars and the like, the combination with a main set of bending-rolls, of a supplemental set of rolls for preventing lateral distortion of the material mounted to revolve in a plane at right angles to the plane of said main rolls, each set comprising a pair of rolls for engaging one side of the material and an intermediate third roll for engaging the opposite side thereof, a common support for the intermediate rolls of each set and means for adjusting said supports in planes at right angles to each other.

4. In bending-rolls for angle-bars and the like, the combination with the main frame and with the main set of bending-rolls, of a supplemental set of rolls for preventing the lateral distortion of the material mountedto revolve in a plane at an angle to the plane of said main rolls, each set comprising a pair of rolls for engaging one side of the material and an intermediate third roll for engaging the opposite side thereof, a common support for said intermediate rolls, boxes movably mounted in said frame for carrying said support, means for adjusting said boxes later-- ally and means for adjusting said support longitudinally within said boxes.

5. In bending-rolls for angle-bars and the like, the combination with the main frame and with the main set of bending-rolls, of a supplemental set of rolls for preventing the lateral distortion of the material mounted to revolve in a plane at an angle to the plane of said main rolls, each set comprising a pair of rolls for engaging one side of the material and an intermediate third roll for engaging the opposite side thereof, a pair of boxes mounted to slide in ways in the ends of said frame, a longitudinal support mounted in said boxes so as to be longitudinally movable therein but held against rotation, means for revolubly mounting the intermediate rolls of each set upon said support and screws for adjusting said boxes laterally and for adjusting said support longitudinally within said boxes.

6. In bending-rolls for angle-bars and the like, the combination with the main frame and with the main set of bending-rolls, of a supplemental set of rolls for preventing the lateral distortion of the material mounted to revolve in a plane at an angle to the plane of said main rolls, each set comprising a pair of rolls for engaging one side of the material and an intermediate third roll for engaging the opposite side thereof, a pair of boxes mounted to slide in guideways in the ends of said frame, a shaft keyed into said boxes but longitudinally movable therethrough, upon which shaft one of the said intermediate rolls is revolubly mounted, a U-shaped' support upon said shaft into which the other of said intermediate rolls is revolubly mounted, means for adjusting said boxes laterally and means for adjusting said shaft longitudinally through said boxes.

7. In bending-rolls for angle-bars and the like, the combination with the main frame and with the main set of bending-rolls, of a supplemental set of rolls for preventing the lateral distortion of the material, mounted to revolve in a plane at an angle to the plane of said main rolls, each set comprisinga pair of rolls for engaging one side of the material and an intermediate third roll for engaging the opposite side thereof, a pair'of boxes mounted to slide in guideways in the ends of said frame, a longitudinal support keyed into said boxes but longitudinally movable therethrough, upon which support the intermediate rolls of each set are revolubly mounted, a screw-threaded end on said support,-a nut engaging said threaded end and held against longitudinal movement in one of said boxes, adj usting-screws swiveled to said boxes and codperating nuts for said screws held against movement in the ends of said frame.

8. In bending-rolls for angle-bars or the like, the combination with a main set of bending-rolls, of a supplemental set of rolls mounted to revolve in a plane at an angle to the plane of said main rolls, each set comprising a pair of rolls for engaging one side of the material and an intermediate third roll for engaging the opposite side thereof, each roll in one set being arranged adjacent the corresponding roll in the other set, means for adjusting the rolls of each set and gearing for driving said rolls, substantially as described.

9. In bending-rolls for angle-bars or the like, the combination with a main set of bending-rolls having cylindrical peripheral surfaces, of the supplemental set of rolls having cylindrical peripheral surfaces mounted to revolve at an angle to the plane of said main rolls, each set comprising a pair of rolls for engaging one side of the material and an intermediate third roll for engaging the opposite side thereof, each roll in one set being arranged adjacent the corresponding roll in the other set, means for adjusting each of said intermediate third rolls to and from the pair of rolls cooperating therewith and gearing for driving said rolls.

10. In bending-rolls for angle-bars and the like, the combination with the main set of bending-rolls having cylindrical peripheral surfaces, of the supplemental set of rolls having cylindrical peripheral surfaces mounted to revolve at an angle to the plane of said main rolls, each roll in one set being arranged adjacent the corresponding roll in the other set with the periphery of the one of each pair of adjacent rolls arranged to engage the edge of the angle-bar flange extending past the face of the corresponding roll in the other set.

11. In bending-rolls for angle-bars and the like, the combination with a main set 'of bending-rolls having cylindrical peripheral surfaces, of a supplemental set of rolls having cylindrical peripheral surfaces for preventing lateral distortion of the material,

IIO

mounted to revolve in a plane at right angles to the plane of said main rolls, each set comprising a pair of rolls for engaging one side ofv the material and an intermediate third roll set comprising a pair of rolls for engaging one side of the material and an intermediate third roll for engaging the opposite side thereof, each roll in one set being arranged adjacent the corresponding roll in the other set with the periphery of the one of each pair, of adjacent rolls arranged to engage the edge of the angle-bar flange extending past the face of the corresponding roll in the other set,

whereby the edges and sides of the flanges of an angle-bar may be properly engaged by both sets of rolls. .r

13. In bending-rolls for angle-bars-and the 3 like, the combination with a main set of bending-rolls, of a supplemental set of rolls'for preventing the lateral distortion of the mate- [25 w rial, mounted to revolve in a plane'at an angle 1 to the plane of said main rolls, the rolls of the V r W supplemental set being interchangeably held 3 in place.

14. In bending-rolls for angle-bars and'the 36 like, the combination with a main set of bend; 7 ing-rolls, of a supplemental set of rolls for; preventing the lateral distortion of the mate: rial, mounted to revolve in a plane at an'angle to the plane of said main rolls, the rolls of the-35 supplemental set being interchangeably held in place and provided with shouldered ends; 7 substantially as described. 7

GEORGE THOMPSONr a 

